newby

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    Frauchiger & Renner / newby question

    I am trying to understand Frauchiger & Renner's (2018) paper but it's been thirty years since I studies quantum physics at college. There's one step I just can't get. Fbar gets tails, and Wbar gets the result OK. Why? Wbar is measuring the state of Fbar's lab against a basis that is...